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Chemical Structure| 77628-51-4 Chemical Structure| 77628-51-4

Structure of 77628-51-4

Chemical Structure| 77628-51-4

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Product Details of [ 77628-51-4 ]

CAS No. :77628-51-4
Formula : C7H6N2O2S
M.W : 182.20
SMILES Code : O=C(C1=C(C)N=C2SC=CN21)O
MDL No. :MFCD02083132

Safety of [ 77628-51-4 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H317-H319
Precautionary Statements:P280-P305+P351+P338

Application In Synthesis of [ 77628-51-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 77628-51-4 ]

[ 77628-51-4 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 475105-35-2 ]
  • [ 77628-51-4 ]
  • [ 1040152-65-5 ]
YieldReaction ConditionsOperation in experiment
95% With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 20.0h; 6-Methyl-imidazo[2,1-b]thiazole-5-carboxylic acid (2.0 g, 10.975 mmol) was dissolved in MeCN (35 mL), TBTU (3.52 g, 10.975 mmol) was added followed by the addition of DIPEA (2.82 mL, 16.462 mmol) and a solution of <strong>[475105-35-2](S)-2-aminomethyl-piperidine-1-carboxylic acid tert-butyl ester</strong> (2.35 g, 10.975 mmol) in MeCN (20 mL). Stirring at rt was continued for 20 h. The reaction mixture was concentrated under reduced pressure, again diluted with EtOAc and subsequently washed with a sat. citric acid solution, a sat. NaHCO3 solution and brine. The organic layer was dried over MgSO4, filtered and concentrated under reduced pressure to give 3.98 g (95%) of (S)-2-[(6-methyl-imidazo[2,1-b]thiazole-5-carbonyl)-amino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester as a slightly orange foam which was used without further purification. LC-MS: tR=0.80 min; [M+H]+=379.46.
95% With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20℃; for 20.0h; STEP 1:6-Methyl-imidazo[2,l-b]thiazole-5-carboxylic acid (2.0 g, 10.975 mmol) was dissolved in MeCN (35 mL), TBTU (3.52 g, 10.975 mmol) was added followed by the addition of DIPEA (2.82 mL, 16.462 mmol) and a solution of (S)-2-aminomethyl-piperidine-l- carboxylic acid tert-butyl ester (2.35 g, 10.975 mmol) in MeCN (20 mL). Stirring at rt was continued for 20 h. The reaction mixture was concentrated under reduced pressure, again diluted with EtOAc and subsequently washed with a sat. citric acid solution, a sat. NaHCO3 solution and brine. The organic layer was dried over MgSO4, filtered and concentrated under reduced pressure to give 3.98 g (95%) of (S)-2-[(6-methyl- imidazo[2, 1 -b]thiazole-5-carbonyl)-amino]-methyl} -piperidine- 1 -carboxylic acid tert- butyl ester as a slightly orange foam which was used without further purification. LC- MS: tR = 0.80 min; [M+H]+ = 379.46.
 

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